Financial Instruments - Schedule of Gross Notional and Fair Value of Derivative Financial Instruments in the Consolidated Condensed Balance Sheets (Details) - USD ($) $ in Millions	Jul. 31, 2018	Oct. 31, 2017
Derivatives, Fair Value
Outstanding Gross Notional	$ 24,495	$ 24,573
Gross Amount Recognized	323	121
Derivative Liabilities	215	372
Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	269	109
Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	54	12
Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	134	260
Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	81	112
Derivatives designated as hedging instruments
Derivatives, Fair Value
Outstanding Gross Notional	19,782	18,649
Derivatives designated as hedging instruments \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	258	92
Derivatives designated as hedging instruments \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	54	12
Derivatives designated as hedging instruments \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	116	245
Derivatives designated as hedging instruments \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	81	112
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts
Derivatives, Fair Value
Outstanding Gross Notional	1,000	2,500
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	1	0
Derivatives designated as hedging instruments \| Fair value hedges \| Interest rate contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	22	12
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	18,782	16,149
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	258	92
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	54	12
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	115	245
Derivatives designated as hedging instruments \| Cash flow hedges \| Foreign currency contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	59	100
Derivatives not designated as hedging instruments
Derivatives, Fair Value
Outstanding Gross Notional	4,713	5,924
Derivatives not designated as hedging instruments \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	11	17
Derivatives not designated as hedging instruments \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives not designated as hedging instruments \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	18	15
Derivatives not designated as hedging instruments \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	0	0
Derivatives not designated as hedging instruments \| Foreign currency contracts
Derivatives, Fair Value
Outstanding Gross Notional	4,645	5,801
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	9	16
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	18	15
Derivatives not designated as hedging instruments \| Foreign currency contracts \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	0	0
Derivatives not designated as hedging instruments \| Other derivatives
Derivatives, Fair Value
Outstanding Gross Notional	68	123
Derivatives not designated as hedging instruments \| Other derivatives \| Other Current Assets
Derivatives, Fair Value
Gross Amount Recognized	2	1
Derivatives not designated as hedging instruments \| Other derivatives \| Other Non-Current Assets
Derivatives, Fair Value
Gross Amount Recognized	0	0
Derivatives not designated as hedging instruments \| Other derivatives \| Other Accrued Liabilities
Derivatives, Fair Value
Derivative Liabilities	0	0
Derivatives not designated as hedging instruments \| Other derivatives \| Other Non-Current Liabilities
Derivatives, Fair Value
Derivative Liabilities	$ 0	$ 0

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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